<!DOCTYPE html>
<html lang="en" xmlns:th="http://www.thymeleaf.org">
<head>
    <meta charset="UTF-8">
    <title>Page1</title>
</head>
<body>
    <!-- th:fragment 定义用于加载的块 -->
    <span th:fragment="footer">
        it is test！
    </span>
</body>
</html>